Messages in this thread | | | Date | Sat, 9 Oct 2021 11:24:14 -0700 | From | Richard Cochran <> | Subject | Re: [PATCH net-next] ptp: add vclock timestamp conversion IOCTL |
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On Fri, Oct 08, 2021 at 09:13:58AM +0200, Sebastien Laveze wrote: > On Thu, 2021-10-07 at 13:19 -0700, Richard Cochran wrote:
> > If two independent processes are both adjusting a clock concurrently, > > asynchronously, and at different control rates, the result will be > > chaos. > > This is especially what we want to prove feasible and we think it's > posssible with the following conditions: > -limited frequency adjustments > -offset adjustment in software
Sorry, the kernel still must function correctly, even when user space does crazy stuff.
> > It does not matter that it *might* work for some random setup of > > yours. > > > > The kernel has to function correctly in general, not just in some > > special circumstances. > > Of course, so what tests and measurements can we bring on the table to > convince you that it doesn't lead to chaos ?
Show that it always works, even with worst case crazy adjustments.
Thanks, Richard
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